Working Principle of wedge wire cylinder backwash filter

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Water enters through the entrance, first filters out the impurities of larger particles through the coarse filter, and then reaches the fine filter. In the process of filtration, the fine filter gradually accumulates dirt and impurities in the water, forming a filter impurity layer, which accumulates in the inner side of the fine filter, thus forming a pressure difference on both sides of the fine filter.

When the pressure difference of the filter reaches the preset value, the automatic cleaning process will begin. In this process, the water supply will flow continuously, the cleaning valve will open, the water pressure in the cleaning room and the suction device will decrease greatly. Through the pressure difference between the filter barrel and the suction tube, the suction between the suction tube and the cleaning room will be generated through the suction nozzle to form a suction process.

At the same time, the electric motor drives the suction pipe to screw along the axis.

The combination of the axial motion and the rotary motion of the filter cleans the whole inner surface of the filter completely. The whole rinsing process only takes tens of seconds. The drain valve closes at the end of cleaning. The filter begins to prepare for the next flushing cycle.